Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 12 10.  Predictions up to the next  30.0 days:

Date(AQUA)     Time(AQUA)   AQUA Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 12/13/2015   15:09:50   (  22.63, 159.83) 12/13/2015   15:13:19    (  23.69, 157.31)  284.01            209
 12/16/2015   03:30:18   (  17.72, 148.66) 12/16/2015   03:28:11    (  17.37, 147.02)  177.79            127
 12/24/2015   02:42:00   (  22.21, 160.00) 12/24/2015   02:38:38    (  21.90, 158.60)  148.16            202
 12/29/2015   15:09:38   (  22.59, 159.88) 12/29/2015   15:13:06    (  23.82, 157.33)  293.98            208
 01/01/2016   03:29:58   (  17.44, 148.79) 01/01/2016   03:27:55    (  17.10, 147.08)  185.08            123